2009 Design of Medical Devices Conference Abstracts

Cardiac Axial Blood PUmp Analysis and Performance Prediction PUBLIC ACCESS

[+] Author and Article Information
D. H. Hussein, H. Gitano-Briggs, M. Z. Addullah

School of Mechanical Engineering, Universiti Sains Malaysia

J. Med. Devices 3(2), 027549 (Jul 24, 2009) (1 page) doi:10.1115/1.3147260 History: Published July 24, 2009


Computational fluid dynamics (CFD) has been used for developing and evaluating the performance of a novel design of the cardiac axial blood pump (CABP). This device could be used as an implantable pump for boosting blood circulation in patients whose hearts are not providing sufficient output. Based on the Berlin Heart configuration the blood pump has been designed for a flow rate of 5 L/mine and 100 mmHg of head pressure. Finite element analysis method has been performed to predict the shear stress, pressure, velocity, pressure drop on the fluid through the pump and the shear stress on the pump impeller. Also, flow streamlines has been discussed in detail in this study to predict the flow streamlines behavior and the stagnation points. The goal of this work is to design an efficient blood pump to support the blood circulatory system and reduce the shear stress and blood hemolysis during transport through the pump. Our design simulated at several rotational speeds (5000 to 7000) rpm to investigate the relationship between the rotational speeds and shear stress. Results indicate that the rotational speed has a direct correlation with shear stress and pressure drop and at 6500 rpm the pump gives its optimal pressure drop.

Copyright © 2009 by American Society of Mechanical Engineers
This article is only available in the PDF format.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In